baber/WOPTO huggingface dataset:
Patent GB-513555-A (GB)
Title: Improvements in aircraft pipe couplings
IPC: F16L25/01
Filed: 1938-04-13
Abstract: 513,555. Pipe couplings. TRIST & CO., Ltd., R., ROBBINS, R. A., and WAKLEY. T. L. April 13, 1938, No. 11389. [Class 99 (i)] Metal pipe lines in aircraft, wherein fluidtight joints are made by rubber or like coupling-sleeves, electrical bonding between the pipes is obtained simultaneously with fluid-tightness by providing the sleeves with an electrically-conducting medium in such a manner that the conducting-medium is pressed by the sleeve against the metal surface of each of the pipe members that it couples. Fig. 1 shows two pipes a, b coupled by a sleeve c, in which is embedded metal gauze as at d or f, so as to contact with the pipes. The gauze may also contact with the metal securing-clips e. Fig. 3 shows a joint between a pipe b and a petrol tank or other fixture h, the rubber packing c being provided with a number of radially-arranged staples d giving the electrical connection. In another form, metal strips bent around the coupling-sleeve are used ; or perforated metal, or sprayed or electrically deposited metal may be used.
Patent GB-619772-A (GB)
Title: Improvements in and relating to signal transmission systems employing radio links
IPC: H04B7/155
Filed: 1946-04-15
Abstract: 619,772. Radio signalling. GENERAL ELECTRIC CO., Ltd., and ESPLEY, D. C. April 15, 1946, No. 11481. [Class 40 (v)] In a radio link repeating system, particularly intended for television or other broad-band signalling, the original signals are stepped up in frequency at the transmitter to form a derived signal band of less than one octave in width, and at the repeater stations the derived band is amplified and passed through a low-pass filter before being re-transmitted. Fig. 1 (a) shows the original signal band 10 of 0-12 mc/s., which is modulated on a sub-carrier fc of, for example, 80 mc/s. to produce upper and lower side-bands 11, Fig. 1 (b), extending from 68-92 mc/s. The lower side-band, together with the subcarriers and a small portion of the upper side-band are selected by a filter having the band-pass characteristic 13, and are stepped down in frequency by mixing with a frequency 52 mc/s. and passing the resultant through a filter having the pass-band 15, Fig. 1 (c). The signal-band of 16-30 mc/s., thus derived, including the carrier fc<1> of 28 mc/s., is less than an octave in width, and is transmitted to the first repeating station, e.g. by modulating it on a carrier of 1000 mc/s. and selecting the lower side-band. At the repeating-station, the derived band 19, Fig. 3, is recovered by mixing the received wave with a local oscillation of about 1000 mc/s. and selecting the lower sideband by a low-pass filter 20 accepting all frequencies from 0 to 40 mc/s, but preferably attenuating the lowest frequencies as indicated at 21. The derived band after amplification is re-transmitted to the next station, using a carrier of the same frequency 1000 mc/s., or of a different frequency. At the terminal receiving. station, the derived signal band is recovered as at the repeating stations and is applied to a frequency selective circuit containing a rectifier, from which is obtained the original signal 0-12 mc/s. As the derived signal band includes both side bands in the immediate neighbourhood of the sub-carrier f'c, the lowest frequencies would be emphasized in the recovered original signal. This is avoided by passing the derived band through a filter having the characteristic 24, Fig. 4, which symmetrically attenuates the frequencies on either side of the sub-carrier f'c. Restriction of the width of the derived signal band to less than an octave ensures that spurious components, generated by intermodulation of desired components and their harmonics, lie outside the band. Low-pass filters are desirable on account of their introducing less distortion than band-pass filters, thus permitting greater amplification in the associated amplifiers. Low-pass filters however pass undesirable. low frequencies, and on this account, it is desirable that some repeaters, say every third or fourth, should include filters of the bandpass type. Alternatively, each repeater station may include both types of filter. Specification 619,846 is referred to.
Patent GB-991563-A (GB)
Title: Machine for the aligning of railway tracks
IPC: E01B27/17
Filed: 1962-03-27
Abstract: 991,563. Aligning railway tracks. F. PLASSER, [trading as FRANZ PLASSER BAHNBAUMASCHINEN]. March 27, 1962 [May 18, 1961], No. 11619/62. Heading E1G. A machine for aligning railway tracks comprises a chassis running on those tracks which carries, projecting from one end, a pivotable arm with means at its free end for applying a lateral force to the or each rail of the chassiscarrying track. As shown, Fig. 1, an arm 8 mounted at the rear of a trackpacking machine, having conventional rail-height correction means 3, 4, is pivotable in vertical and horizontal planes by cylinder-piston units 13 and 14 respectively. The arm supports a rail gripper 9 carrying means 10 for applying vibrations to one or more tracks. The arm may be retracted through a guide 11 into the chassis 1 by engagement of a power driven toothed wheel 12 with a rack 12<SP>1</SP>. In an alternative embodiment, Fig. 3, the arm 8 is pressed and drawn upwards by pairs of cylinder-piston units 25 and 24 respectively. Tensioned wires 21 and 21<SP>1</SP> serve as reference lines for vertical and lateral alignment of the tracks, the wire 21 extending from an advance truck 20 to a tensioning drum 20<SP>1</SP> on the front of the chassis and the wire 21<SP>1</SP> extending from a following truck 22<SP>1</SP> to the rear of the chassis. The truck 22<SP>1</SP> is spaced from the chassis 1 by a plurality of articulated retractable frames 23 running on wheels 23<SP>1</SP>.
Patent GB-192001-A (GB)
Title: Improved apparatus for preventing dazzle in vehicle lamps
IPC: F21V5/00
Filed: 1922-04-25
Abstract: 192,001. Pougher, A. W. April 25, 1922. Lenses.-A double or two distinct lenses, formed of a plurality of prisms, are disposed in front of the source of light in a vehicle lamp so as to project two concentric divergent beams, the inner beam being stronger than the outer in order to prevent glare. Each of the lenses has a central boss the face of which has a different inclination to the central axis from that of the faces of the remaining prisms. The lenses are preferably of plano-concave type, the concave surface of the rear lens A being next to the source of light C, and that of the front lens B being directed forwardly. The lenses are built of concentric ring-shaped prisms, the centre part constituting a conical boss, that of the rear lens A being of greater cross-sectional area than the annular prisms E - - H. The angular faces of these prisms are of successively greater length from the centre outwards. The face of the central boss D of the rear lens A is inclined at an angle of from 60‹ to 63‹ and the faces of the prisms E - - H, are inclined at about 58‹ to the central axis, while the face of the central boss L of the front lens B is at an angle of about 75-76‹; the faces of the outermost prism M, which may be frosted, are at approximately 40‹, and those of the intermediate prisms N, N are at or about 48‹ to the axis. The outer faces of the lenses may be plane surfaces. The inner concentrated light beam produced is a cone with an angle of approximately 20‹. In order to obtain a flat beam, the prisms may be made D- shape or other suitable shape. Portions of the rings may be frosted or coated with opaque material, and the centre part of one or both lenses may be omitted. Glass having a specific gravity of 2.9 and a refractive index of 1.574 may be employed.
Patent GB-477808-A (GB)
Title: Wireless signalling systems for aircraft
IPC: H04B1/10
Filed: 1937-04-23
Abstract: 477,808. Wireless signalling. LORENZ AKT.-GES., C. April 23, 1937, No. 11682. Convention date, April 30, 1936. [Class 40 (v)] In order to prevent the modulation note due to the rotating propellers from interfering with the reception on an aeroplane of keyed signals, such as those used to define a predetermined course, the frequency used for keying is made definitely higher than the frequency of the propellers. A filter circuit tuned to the latter frequency is interposed between the receiver and the visual or other indicator which records the navigational signals. The signals are keyed for instance at a frequency of 100 cycles as compared with the normal 50 to 75 cycles of the propeller. The filter circuit K, between the receiver E and indicator A, is designed to pass the signals but not the interfering note due to the propellers.
Patent GB-1247632-A (GB)
Title: Apparatus for charging a material into a mould
Inventor: HUBERS ERNST
IPC: H05K3/00
Filed: 1970-03-11
Abstract: 1,247,632. Charging moulds. E. HUBERS. 11 March, 1970 [12 March, 1969], No. 11737/70. Heading B5A. [Also in Division B3] Apparatus for charging material into moulds 9 under a particular atmosphere comprises a container 1 subdivided into at least three chambers 6, 7 and 8 sealed from one another, ducts 2, 3 and 4 for the supply and discharge of gases, and an inlet 5 for the material being introduced into the moulds. The chambers are constructed as dishes open at the top and movable through the cylinderical container 1 in the direction indicated by the arrows b. Sealing rings in slots 19-24 in the end faces 13-18 seal the individual chambers 6, 7 and 8 from the container 1. In use the dishes are moved through the container 1 in the direction shown so that each mould in turn is located under the inlet 5 where it is filled, vacuum or special gases being supplied via the ducts 2, 3 and 4. Different atmospheres may be supplied through the different ducts but because the length of each chamber is less than the distance between adjacent ducts, the atmosphere within the chamber 7 remains constant until all the moulds 9 contained therein have been filled. In an embodiment, Fig. 3, the chambers are in the form of segments of a circle, the chambers rotating past an inlet 39 for the material and having their atmosphere supplied or withdrawn through ducts 31-38.
Patent GB-139074-A (GB)
Title: Improvements in vehicle lamps
IPC: B60Q1/26
Filed: 1919-05-10
Abstract: 139,074. Weston, P. J., (trading as Weston & Co., F. A.). May 10, 1919. Vehicle lamps, attaching to lamp brackets.- The detachable back 5 is fitted with an attachment plate 6, Fig. 1, of a vehicle lamp, the body 1 of which is made in one piece. Fig. 3 shows lamp body 1, which is pivoted to an attachment plate 15. In modifications, the attachment plates may be at the back or side of the lamp.
Patent GB-577591-A (GB)
Title: Improvements in band clips having closing worm gear
IPC: F16L33/08
Filed: 1944-06-22
Abstract: 577,591. Band clips. CHENEY & SON, Ltd., C. W., and CHENEY, C. W. June 22, 1944, Nos. 11850 and 11851. Addition to 563,807. [Class 44]. In a band clip having a housing 2 carried by one end of the band accommodating a worm 3 which engages teeth formed on the other end of the band when said end is threaded through the housing, and particularly a clip of this type as described and claimed in the parent Specification, the head 6 of the worm is of the same diameter and is screw-threaded in continuation of the other thread, Fig. 1, or is plain and of reduced diameter, Fig. 2, with the object, particularly in clips of small size, of preventing the head from bearing on the band and producing undue friction should the worm and housing tilt in the band-tightening operation. Specification 555,580, [Group XXII], also is referred to.
Patent GB-861649-A (GB)
Title: An improved shuttlecock
Inventor: CARLTON WILLIAM CHARLES
IPC: A63B67/18
Filed: 1957-04-11
Abstract: 861,649. Shuttlecocks. CARLTON GENERAL DISTRIBUTORS (SHUTTLECOCKS) Ltd. April 11, 1957, No. 11854/57. Class 132(3). A shuttlecock consists of a cap A and a balanced flared. skirt B, the skirt being made of artificial material and incorporating straight stiffeners C with air spaces between them, at least two of the stiffeners as regards crosssection being asymmetrically arranged in relation to a diameter, e.g. Y<SP>1</SP> Y<SP>1</SP>, Fig. 3, so that, in flight, air passing through the skirt causes the 'shuttlecock to spin. As described in relation to Fig. 3, the spin is produced by a force D<SP>1</SP> resulting from the action of air on the surfaces E<SP>1</SP> and F of each stiffener C<SP>2</SP>. The stiffeners may have other cross-sections (Figs. 2 and 4, not shown).
Patent GB-1218383-A (GB)
Title: Combined tension spring & extension stop
Inventor: PARTRIDGE ANTHONY ROY
IPC: F16F1/02
Filed: 1968-03-12
Abstract: 1,218,383. Tension spring. LEWIS SPRING PRODUCTS Ltd. 6 June, 1969 No. 11913/68. [12 March, 1968], Heading F2S. A tension spring has abutments 15, 16 or 25, 26 which interact after a predetermined extension of the spring, thus preventing further extension. The spring is made from sheet or strip metal by cutting a flat blank and then bending it to give a spring loop 11 or 21, and two tension members 12, 13 or 22, 23 having attachment hooks 14, 24.
Patent GB-665484-A (GB)
Title: Improvements in and relating to rotary pumps and motors
IPC: F01C1/12
Filed: 1949-05-05
Abstract: 665,484. Rotary compressors, pumps and engines. BRITISH INTERNAL COMBUSTION ENGINE RESEARCH ASSOCIATION, and TRYHORN, D. W. April 28, 1950 [May 5, 1949; Oct. 21, 1949], Nos. 12012/49 and 27063/49. Class 110(ii) The invention relates to co-acting rotors a, b having gaps 4, 5 and one or more pistons 2, 3 on each rotor, in which at least one rotor contains at least one port, one valve 8 and one passage 7. The valve may be adjustable, manually or automatically, and may reciprocate angularly as the rotors rotate. As a compressor, Fig. 2, ports in one or both end plates of the casing connect with inlet and outlet passages 6, 7. Fig. 2, shows delivery just commencing. Fig. 6 shows a modified arrangement the outlet gap on rotor b having rounded corners 9, 10 and the gap is narrower than formerly. The piston 2 is increased in size (normal size shown dotted). Grooves 15, 16 in the piston tips, leading to atmosphere, provide leakage paths for air which otherwise would leak past the rotor ends. The delivery valve 8 may have a serrated surface, or part of the surface of the inlet port may be formed as a grid and the valve move through an arc over the grid, Fig. 13 (not shown). Fig. 14 (not shown) describes an arrangement in which each rotor has two pistons and a valve 8. Further compressors have three or more rotors which may differ in size. Pre-swirl or straightening vanes may be fitted to the inlet or delivery ports to improve the air flow. Fig. 18 shows means to open and close ports rapidly. The valve 25 is rotated in a direction opposite to that of the rotor by means of a crank 20 driven from the rotor through gears 21, 22. The throw of the crank may be adjusted by a mechanism 24, while the phase relationship of the valve 25 and the rotor 26 is varied by a handwheel. Fig. 19 shows means to control inlet and delivery valves 27, 28 by manual and automatic means respectively. The valve 28 is coupled to a pressuresensitive device 31 operated by the difference between the delivery and compression pressures. Rotation of the valve within the rotor 30, in an anti-clockwise direction, increases the degree of internal compression carried out before delivery commences. When the device is used as a supercharger for an internal-combustion engine, the valve 27 may be controlled by the engine throttle lever. When used in a pressurised aircraft cabin, the inlet valve is rotated in a clockwise direction as the aircraft altitude increases. In a modification, Fig. 20 (not shown) the air inlet is in the casing wall and the rotor a is solid and has cupshaped depressions in the rotor hub to allow passage of the pistons on the delivery rotor. The rotors may overhang from the driving shafts, Fig. 8 (not shown), or outer bearings may be provided. Fig. 10 (not shown) includes a pair of rotors arranged back-to-back.
Patent GB-825240-A (GB)
Title: Electrical equipment for connecting a polyphase machine with a polyphase network
IPC: H02J3/42
Filed: 1957-04-12
Abstract: 825,240. A.C. electric motor control systems. SOC. GRAM-ELECTRIC. April 12, 1957 [April 12, 1956; Nov. 27, 1956; Jan. 30, 1957], No. 12014/57. Class 38 (3). [Also in Group XXXV] A system for paralleling a polyphase generator or connecting a motor to, say, a ship's supply system, comprises three single-phase switches or contactors which are closed manually or automatically in turn sufficiently slowly to allow the voltage regulators of the system to adjust the bus-bar voltage between steps. One or more of the machines may be separately excited by means of a conventional circuit 36, 37, 39-42, augmented by an additional field winding 35 fed by a current transformer 31, 33 through a rectifier 34 and transformer 45, so that the winding 35 is only responsive to load current changes. Transformer 45 may alternatively be connected to the control winding of a transductor supplying winding 35, the transductor load winding being fed from a voltage transformer.
Patent GB-611007-A (GB)
Title: Improvements relating to the control of aircraft, ships and other dirigible craft
IPC: G05D1/02
Filed: 1942-08-26
Abstract: 611,007. Fluid-pressure servomotor-control systems. SMITH & SONS (MOTOR ACCESSORIES), Ltd., S., and MEREDITH, F. W. Aug. 26, 1942, No. 12045. [Class 135] [Also in Group XXXV] Steering.-To cause the dirigible craft, such as an aircraft, to turn at a desired rate, device 16 responsive to the rate of deviation from course or of turning is mounted on a turntable 12 which is rotated at the desired rate, whereupon the device causes the craft to turn at that rate by controlling the rudder servomotor 18. A monitoring compass 17 may be mounted on the turntable to respond to any deviation from course and arranged to participate in the control. The rate of turn instrument may be of the kind described in Specification 611,005, [Group XXXVIII], and the compass may be of the form described in Specification 451,850, [Group XXXVI], or in Specification 578,303, [Group XXXVI].
Patent GB-893507-A (GB)
Title: Weather-resistant copolymers and their production
IPC: C07C45/67
Filed: 1960-04-06
Abstract: Weather-resistant copolymers comprise copolymers of an alkene-1 and at least one alkyl compound having the formula <FORM:0893507/IV (a)/1> where R1 is hydrogen, halogen, alkyl, alkoxy, carboalkoxy or acyl, and R2 is alkyl, alkoxy or <FORM:0893507/IV (a)/2> The allyl compounds may be 3-allyl-2-hydroxybenzophenone, 3-allyl-2-hydroxy-acetophenone, 4-methoxy-3-allyl-2-hydroxybenzophenone, 5-allyl-2-hydroxybenzophenone, 5-allyl-2-hydroxyacetophenone, 3-allyl-2-hydroxy-4-methoxyacetophenone, 3-allyl-2-hydroxy-5-chlorobenzophenone, 3-allyl-2,21-dihydroxybenzophenone, 3-allyl-2,21-dihydroxy-4-methoxybenzophenone, 3-allyl-2,21-dihydroxy-4,41-dimethoxybenzophenone, 3-allyl-2-hydroxy-5-acetyl-benzophenone, 3-allyl-2-hydroxy-5-carbomethoxybenzophenone, ethyl 1-allyl-2-hydroxy-3-naphthoate and methyl 3-allyl salicylate.  The alkene may be ethylene, propylene, butene-1, pentene-1 or hexene-1. Polymerization may be effected by means of a peroxide or azo catalyst or a "co-ordination catalyst" comprising a compound of a metal of Group IV(a), V(a) or VI(a) of the Periodic Table or iron, cobalt, copper, nickel or manganese, and a hydride or organometallic compound of a metal of Group I, II or III, in the presence of liquid media, e.g. hexane, benzene, toluene, cyclohexane, bromobenzene, chlorobenzene, o-dichlorobenzene, tetrachloroethylene, dichloromethane, 1,1,2,2-tetrachloroethane, tetrahydrofuran, thiophene and dioxane.  In examples the catalysts employed are (1 and 2) vanadyl trichloride and aluminium triisobutyl, (3) di-tertiary butyl peroxide and (4) azodicyclohexane carbonitrile.  The copolymers may be used in the production of films, filaments, tubing and coatings.
Patent GB-134249-A (GB)
Title: Combination Electric Heater.
Inventor: ROBINSON JAMES HERBERT
IPC: H05B3/00
Filed: 1918-07-26
Abstract: 134,249. Robinson, J. H., and Workman, W. O. July 26, 1918. Electric stoves, radiators, hot-plates, and warmers.-An apparatus for boiling, grilling, &c., and which can also be used as an electric fire, comprises an open stand B to which is pivoted a reflector A containing the heating-elements. The reflector can be rotated so that the open side points horizontally downwards or upwards for grilling or cooking, or at an intermediate angle for heating a, room, a pin being used to retain the reflector in various positions. The reflector is formed with a .flat surface A<2> to support a vessel when the open side is downwards, and with ledges A<1> for carrying plates which require to be warmed. A tray D for grilling is supported on ledges on the stand B beneath the reflector. When the reflector is in a vertical position, the apparatus may be used for roasting by fitting a Dutch oven to the open side. The heating-elements consist of one or more spirally-wound rods with switches to provide for various degrees of heat. When three elements are used, they are arranged in one plane, the centre element being connected by flexible wire to a wall plug, and the outer elements being connected to the same plug but having separate switches. The elements can be removed through an aperture in the stand, and are protected, when in use, by a wire guard.
Patent GB-318115-A (GB)
Title: Improvements in the manufacture and production of artificial rubber
IPC: C08F36/04
Filed: 1928-04-26
Abstract: 318,115. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). April 26, 1928. Caoutchouc, synthetic is prepared by polymerizing an emulsion of a diolefine in presence of an organic substance containing hydrcgen peroxide in loose combination, such as the compounds of hydrogen peroxide with urea, betaine, pinacone or sodium acetate, or the compound of hydrogen peroxide with potassium fluoride. Organic or inorganic colloids such as plant or animal juices or extracts, gum arabic, linseed meal extract, spent sulphite cellulose lye. blood serum, milk, gelatin solutions, and colloids containing metals, emulsifying agents, materials which affect the surface tension, such as higher alcohols, electrolytes, and buffer solutions, may be added. In the examples, isoprene is emulsified with (1) milk or milk from which the casein has been separated and the compound of urea with hydrogen peroxide; (2) solution of sodium isopropylnaphthalene sulphonate, glue, and the compound of urea with hydrogen peroxide, the emulsion being in each case heated at temperatures between 70‹ and 95‹ C. for 2 or 3 days; and (3) an emulsion of butadiene, milk, glue, methyl cellulose, sodium butyl-naphthalene sulphonate, sodium isopropyl-naphthalene sulphonate, castor oil, and the compound of urea with hydrogen peroxide is heated to 50-55‹ C. for 7 days. Specifications 283,840, 286,272, 292,103, 313,188, and 320,960 are referred to. Reference has been directed by the Comptrollerfo Specification 312,201.
Patent GB-1519553-A (GB)
Title: Web slitting and windling machine
IPC: B65H18/16
Filed: 1976-03-26
Abstract: 1519553 Web slitting and winding machines MASCHINENFABRIK GOEBEL GmbH 26 March 1976 [5 April 1975] 12322/76 Heading B8R  A web slitting and rewinding machine in which a plurality of strips cut from a web 6 is wound into oppositely located axially spaced web rolls 10, 41, Fig. 1, is provided with supporting means for each pressure roller 29, 40 associated with a wound roll, effective axial length of the pressure rollers being variable to correspond to different widths ofthe strips wound. The pressure rollers, e.g. 29e, Fig. 3, are provided at one end with a groove in which are located the rollers 24, 25, 26, which constrain the roller axially, the other end of the roller being plain and supported by peripherally spaced rollers 24e, &c. The pressure rollers 29, 40 are supported on pivotal levers carried by pivotal cams 8, 30, which are mounted on plates 7 carried slidably by a block 5. The plates are slidable to correspond to the spacing between the web rolls 10, 41.